"பெருவுடையார் கோயில் - Peruvudaiyar Kovil" (locally known as "Thanjai Periya Kovil") is a Hindu temple dedicated to Lord Shiva located in Thanjavur in the Indian state of Tamil Nadu. It is also known as RajaRajeswara Temple Rajarajeswaram and Brihadeshwara Temple. It is one of the largest temples in India and is an example of Tamil architecture during the Chola period. Built by Raja Raja Chola I and completed in 1010 CE, the temple turned 1000 years old . The temple is part of the UNESCO World Heritage Site known as the "Great Living Chola Temples", with the other two being the Brihadeeswarar Temple, Gangaikonda Cholapuram and Airavatesvara temple